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Details
- Follows
- triangle
- Followed by
- pentagon
- described by source
- Brockhaus and Efron Encyclopedic Dictionary
- has characteristic
- Ptolemy's theorem, Quadrilateral inequality, Bretschneider's formula
- has facet polytope
- edge
- has vertex figure
- line segment
- topic's main category
- Category:Quadrilaterals
Connected on Wikidata
Subject of
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